Lansbee



0. K. FOLLANSBEE OPERATORS CHAIR.

APPLICATION FILED FEB. 7, 1917.

1,3 18,438. Patented Oct. 14, 1919.

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NEEEE STATES EETE T oEEro OSBORNE K. FOLLA1\TSBEE, or BEVERLY, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS, To UNITED SHOE MACHINERY coEPo ATroN, or rATEEsoN, NEW JERSEY, A ooEroEATIoN OF NEW JERSEY. I

OPERATORS CHAIR.

Specification of Letters gatent.

Applicationfilcd Februa y 7, 1917. Serial No. 147,152.

To all whom it may concern:

- Be it known that I, OSBORNE K. FoL- LANSBEE, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain Improvements in Operators Chairs, of which the following description, in connection with the accompanying drawings, .is -a specification, like reference characters on the drawings indicatin like parts in the several figures.

This invention relates to chairs and particularly to improvementsin chairs for the use of operators of machines in factories.

An object of this invention is to provide a chair for the above purpose which, while being inexpensive, will be comfortable, convenient',durable and safe.

With a view to producing a safe chair for this purpose, one feature of the invention consists in providing a chair which will fold uptoward the machine when the operator arises therefrom, in order to clear the aisleand permit the operators to leave the room hurriedly in case of panic, fire or other accident.

II ith the object in mind of producing a comfortable and convenient chair, one feature of the invention consists in providing adjustments so that the chair may be positioned toward and from the machine or sidewise and be secured there in order that the operator may be properly located relatively to the machine. Further adjustment is also provided for locating the seat vertically for the same purpose.

The illustrated construction and arrangement are particularly well adapted for embodiment in a chairbuilt principally of metal, such .a construction having among other advantages the advantage that it will stand the hard usage to which chairs in factories aresubjected.

Other features and objects of the inven tion will be apparent when the following description and claims are considered in connection with the accompanying drawings.

In the drawings: Figure 1 is a perspective of the chair when in position for the operators use.

' Fig. 2 is a perspective of the chair in folded position, and

Fig. is a detail, partly in section, of the 1 base, portion. showing the means for permit ting the position of the chair upon the floor to be adjusted and for then securing the chair in such position.

Referring-to the drawings in detail, 10 is the base portion of the chair and consists of a casting having a recess 12 in its under side, having supporting sockets 14 for holding the seat-supporting uprights and having a lug 16 with a plurality of holes 17, in one of which is a pivot pin 54:, to be referred to later.

In order to permitthe position of the chair upon thefioor to be adjusted, a T- slotted casting 20 is provided, which is fastened to the floor by means of screws 22. Before this pieceis secured to the floor, a screw is placed with its head located in the wide portion of the slot and with the threaded portion standing upright to pass through a slot 24 providedin the base portion 10, which slot is located substantially at right angles to the slot in the T-slotteol piece. A thumb nut 26 on the screw'draws the base portion securely against the floor after the proper location has been determined. By the above construction, a Simpleand effective means is provided for allowing adjustment of the location of the chairupon the floor.

In each of the sockets 14, uprights 30 are secured. These uprights are of pipe or tub-. ing and have holes near their'upper end for receiving a pivot rod 32, to. be referred to later. In the construction shown in thedrawing, a seat supporting frame or casting 34 is provided, to which a wooden seat 36 is secured. However, the seat may be made of any Suitable material and, if made of metal, the lugs shown on the seat-supporting frame may be .made integral with the seat, in which case the'seat-supporting frame would not be used. At the forward end of Patented Oct. 14:, 1919.

the frame are two lugs in each of which are to the tubing 44 in any adjusted position by means of the screws 48 passing through the clamping member 50. However, if desired, the chair may be constructed withoutthe back-rest and the tubing then need not extend above. the seat.

*- ven-t an assumes nearly a vertical position.

In order to guide the rear legs and maintain them in the proper position when the chair is: folded, a pivot rod 52' vpasses through holes in the lower portions of the rear legs and: to these pivot rods is. joined the connection 18, above mentioned, The connection 18 is pivotally connected to the lug 16 by means of a pivot pin 54. It will be noted that the pivots 32, 42, 52 and 54 are located in the edges of substantially a paral lelepiped and,-therefore, when the rear legs are lifted upwardly, they remain in substantial ly a vertical position and are drawn in close to the uprights 30, while the seat 36 folded position of the chair is shown clearly In order to cause the chair to fold up, when the occupant arises therefrom, a spring 56 is connected to the pivot rod 52. and to a lug 58 depending from the seat-supporting frame. This lug 58 has a plurality of holes 60, into any of which the hook of the spring- 5'6j may be inserted'in order to adjust the tensionof the spring. When the chair is occupied, the spring 56 is extended but, when the occupant arises, the tension of this spring draws the seat and rear legs toward each other and causes the chair to assume the folded position shown-in Fig. 2.

' In adjusting" the height of the seat, a line joining'the pivot rods 32Vand 42 assrmies different angular relations with the floor and, accordingly, the pivot pin 54 should be located in the proper hole in the lug 16- so that a line joining the pivots '52 and 54 will be parallel to a line joining the pivot rods 32 andt2, so that all the pivots will liein the edges of a parallelepiped and thus pre y cramping action when the chair is folded.

-'Havi'ng; thus described the invention, what is claimed as new and desired to be secured to theseat, and means for causing the rear- 2 legs normally toapproach the'frontlegsJ 2. A foldingchair having, in combina: tion, front legs, supporting means to which the-frontlegsare fixedly secured, a seat piv- This chair to fold up when the occupantwarises therefrom; o 4.

4. A folding chair having, in combina-.

tion, a base portion constructed and ar 51 ranged to be secured to 'a floor, uprights sei cured to said base portion, a seat p-ivotally" connected to said uprights, rear legs pivotally connected to the seat, said rear legs be ingcomposed of a unitarypiece of tubing extending above the seat, a backrest ad-- j ustabl y secured to the portion of tubing-extending abovethe seat, connections pivotally joining the rear legs and the-base por tion and means for causing the chair to fold up when the occupant arises therefrom.

5. A folding chair l iaving,in combina-l tion, a base portion constructed and ar ranged'to be adjustably secured to a: floor, uprights secured to saidbase-portioma seatpivotally connected to said uprights, rear legs pivotally connected to the seat, said rear legs being composed of a unitary piece of tubing extending above the seat, a back rest'adjustablysecured to the portion of tubing extending above the seat, connections pivotally joining the rear legs and the base portion and a spring for causing the-chair to foldup when the occupant arises there from.

6. A folding chair having, in combination; a T-slotted piece provided with means for securing it to a floor, a base portion with a recess to receive said T-slotted piece in my adjusted location, a slot in said base portion, means passing through the T-slot and the slot in the base portion for clamping the base portion in adjusted location, uprights secured to said base portion, aseat pivotally' connected to said uprights, two--rearlegs' pivotally" connected to the seat, connections pivotally joining the rear legs and the base portion and means for causing thechairfto fold up when the occupant arisestherefrom.

7. Anadjustable folding chair having in combination, a base portion, uprights sea cured to said base portion, rear legs, a seat, pivots for joining the seat :to the uprights and to the rear legs, a plurality of pivot locations for said pivots which maybese V lectively used to adjust the height "of-said seat, connections between the rear legs the-base portion, pivots for joining the connections to the rear legsandto the base por a parallelepiped to allow the chair to be folded up when unoccupied.

8. An adjustable folding chair having, in combination, a base portion, uprights secured to said base portion, rear legs, a seat, pivots for joining, the seat to the uprights and to the rear legs, a plurality of pivot locations for said pivots which may be sewhich may be selectively used, accordlng to lectively used to adjust the height of said seat, connections between the rear legs and the base portion, pivots for joining the connections to the rear legs and to the base portion, a plurality of pivot locations for the last-mentioned pivots, any of whichmay be selectively used, according to the adjusted position of the seat, all pivots being selectively located in the edges of substantially a parallelepiped to allow the chair to be folded up and means for causing the chair to fold up when the occupant arises there from.

combination, a base portion, uprights secured to said base portion, rear legs and a back-rest support composed of a unitary piece of tubing, a back-rest, a seat, pivots for joining the seat to the uprights and to the rear legs, a plurality of pivot locations for said pivots which may be selectively used to adjust the height of said seat, connections between the rear legs and the base portion, pivots for joining the connections to the rear legs and to the base portion, a plurality of pivot locations for the lastmentioned pivots, any of which may be selectively used, according to the adjusted position of the seat; all pivots being selectively located in the edges of substantially a parallelepiped to allow the chair to be folded up when unoccupied.

9. An adjustable folding chair having, in

10. An adjustable folding chair having, in combination, a base portion constructed and arranged to be adjustably secured to a floor, uprights secured to said base portion, rear legs, a seat, pivots for joining the seat to the uprights and to the rear legs, a plural ity of pivot locations for said pivots which may be selectively used to adjust the height of said seat, connections between the rear legs and the base portion, pivots for joining the connections to the rear legs and to the base portion, a plurality of pivot locations for the last-mentioned pivots, any of the adjusted position of the seat; all pivots being selectively located in the edges of substantially a parallelepiped to allow the chair to be folded up when unoccupied.

11. An adjustable folding chair having, in combination, a base portion constructed and arranged to be adjustably secured to a floor, uprights secured to said base portion, rear legs and a back-rest support composed of a unitary piece of tubing, a back-rest adjustably secured to the back-rest support, a seat, pivots for joining the seat to the uprights and to the rear legs, a plurality of pivot locations for said pivots which may be selectively used to adjust the height ofsaid seat, connections between the rear legs and the base portion, pivots for joining the connections to the rear legs and to the base portion, a plurality of pivot locations for the last-mentioned pivots, any of which may be selectively used, according to the adjusted position of the seat, all pivots being selectively located in the edges of substantially a parallelepiped to allow the chair to be folded up and a spring for causing the chair to fold up when the occupant arises therefrom.

In testimony whereof I have signed my name to this specification.

OSBORNE K. FOLLANSBEE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

